Mailen Auroux defeated Olivia Sanchez 6-4 4-6 6-3 in the Civitavecchia 25K qualifying round on clay. The upset overturned the form book — Olivia Sanchez came in leading the head-to-head 1–0, but Mailen Auroux had been the form player, winning 3 of their last 7 on clay. Mailen Auroux claimed a first win over Olivia Sanchez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-10 | Rio de Janeiro 25K | QF | clay | Olivia Sanchez | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.